Error Code AE

Leakage Error

Also displayed as: AE

What This Means

Door gasket loose or fell off; Float assembly stuck; Seal assembly not properly connected to sump; Unit not leveled correctly; Wrong detergent causing oversudsing; Door opened during cycle; Excess water in tub from faulty inlet valve or air guide; Controller (main PCB) damaged

How to Fix

1. 1

   1. Tilt the machine to drain water from base. Identify and inspect all sealing areas.

2. 2

   2. Check sealing part of drain hose, pump casing assembly, and vario motor for leaks. Reassemble or replace as needed.

3. 3

   3. Inspect door gasket for proper seating. If loose or fallen off, replace door liner assembly.

4. 4

   4. Check if safety (float) switch assembly is stuck. If so, replace safety switch assembly.

5. 5

   5. Use a digital level to verify machine is properly leveled. Level the machine if needed.

6. 6

   6. Confirm customer is using dishwasher-rated detergent only, not hand dishwashing liquid.

7. 7

   7. Ask customer if the door was opened mid-cycle. If door gasket is verified good, replace door liner assembly.

8. 8

   8. Check if excess water is present in tub suggesting inlet valve not closing. Replace inlet valve or air guide if overfilling.

9. 9

   9. For AE diagnostic report: document level check, mounting bracket, detergent type, cycle count, most-used cycle, inlet water temp, and whether door was opened.

10. 10

    10. If no physical cause found, replace main PCB assembly.

11. 11

    IMPORTANT: For AE errors, always remove water from underneath the float switch (safety switch) before restarting.

This Error Applies To

LG LUDP8997SN Series Dishwashers